edu.iastate.metnet.ui
Class StructureQueryHelper

java.lang.Object
  edu.iastate.metnet.ui.StructureQueryHelper

public class StructureQueryHelper
extends java.lang.Object

helper functions

Author:

Jie Li

Field Summary

(package private) static org.apache.log4j.Logger

logger log4j facility

Constructor Summary

StructureQueryHelper()

Method Summary

(package private) java.util.Map	createBounds(org.jgraph.graph.CellView view, java.awt.Color color) create the box for the label
(package private) java.util.Map	createLines(org.jgraph.graph.CellView view, java.awt.Color color) create an line
(package private) java.lang.Object[]	getGraphModel(org.jgraph.JGraph graph) try to recognize the graph data model from the user interface
(package private) java.util.List	getPredEdgeList(org.jgraph.graph.GraphModel model, org.jgraph.graph.GraphCell cell) get the predecessor edges
(package private) org.jgraph.graph.DefaultGraphCell	getSourceNode(org.jgraph.graph.GraphModel model, org.jgraph.graph.GraphCell cell) get the source node list of the edge
(package private) java.util.List	getSuccEdgeList(org.jgraph.graph.GraphModel model, org.jgraph.graph.GraphCell cell) get the successor edge list
(package private) org.jgraph.graph.DefaultGraphCell	getTargetNode(org.jgraph.graph.GraphModel model, org.jgraph.graph.GraphCell cell) get the target node list of the edge
(package private) boolean	isEdge(org.jgraph.graph.GraphModel model, java.lang.Object cell) detect if it is a vertex
(package private) boolean	isVertex(org.jgraph.graph.GraphModel model, java.lang.Object cell) detect if it is a vertex
(package private) java.lang.Integer	nextPortObject() create unique port number

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

logger

static org.apache.log4j.Logger logger

log4j facility

Constructor Detail

StructureQueryHelper

public StructureQueryHelper()

Method Detail

nextPortObject

java.lang.Integer nextPortObject()

create unique port number

Returns:

unique port number

getPredEdgeList

java.util.List getPredEdgeList(org.jgraph.graph.GraphModel model,
                               org.jgraph.graph.GraphCell cell)

get the predecessor edges

Parameters:

model - the graph model

cell - the graph element

Returns:

the edge list

getSuccEdgeList

java.util.List getSuccEdgeList(org.jgraph.graph.GraphModel model,
                               org.jgraph.graph.GraphCell cell)

get the successor edge list

Parameters:

model - the graph model

cell - the graph element

Returns:

the successor edge list

getSourceNode

org.jgraph.graph.DefaultGraphCell getSourceNode(org.jgraph.graph.GraphModel model,
                                                org.jgraph.graph.GraphCell cell)

get the source node list of the edge

Parameters:

model - the graph model

cell - the edge

isVertex

boolean isVertex(org.jgraph.graph.GraphModel model,
                 java.lang.Object cell)

detect if it is a vertex

Parameters:

cell - the cell

Returns:

if it is a vertex

getGraphModel

java.lang.Object[] getGraphModel(org.jgraph.JGraph graph)

try to recognize the graph data model from the user interface

Returns:

the graph data model,the vertex is the blockid

isEdge

boolean isEdge(org.jgraph.graph.GraphModel model,
               java.lang.Object cell)

detect if it is a vertex

Parameters:

cell - the cell

Returns:

if it is a vertex

getTargetNode

org.jgraph.graph.DefaultGraphCell getTargetNode(org.jgraph.graph.GraphModel model,
                                                org.jgraph.graph.GraphCell cell)

get the target node list of the edge

Parameters:

model - the graph model

cell - the edge cell

Returns:

the target node

createBounds

java.util.Map createBounds(org.jgraph.graph.CellView view,
                           java.awt.Color color)

create the box for the label

Parameters:

view - the box view

color - the color

Returns:

the box attribute map

createLines

java.util.Map createLines(org.jgraph.graph.CellView view,
                          java.awt.Color color)

create an line

Parameters:

view - the cell view

color - the color

Returns:

the line attribute map